Masabi

Principal Engineer (Payments)

Masabi
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3 months ago
Bucharest, RomaniaStaff+

Responsibilities

  • Shape the technical direction, architecture, standards, and best practices for Masabi’s payments platform.
  • Design and deliver scalable, secure, resilient, and cost-effective payment solutions.
  • Support engineering teams evolving toward a modern service-based architecture while balancing delivery and long-term platform health.
  • Contribute to architecture reviews, design discussions, technical documentation, roadmap planning, prioritisation, and technical scoping.
  • Identify and resolve complex challenges involving scalability, resilience, operational performance, and system evolution.
  • Act as a senior technical advisor across engineering teams, particularly within the payments domain.
  • Collaborate with external payment providers and partners on integrations, technical alignment, and problem-solving.
  • Contribute to engineering standards, technical forums, architecture patterns, and organisational best practices.

Requirements

  • Strong experience working with payment systems, including payment service providers, gateways, EMV, contactless EMV, and acquirers.
  • Good understanding of payment flows, transaction lifecycles, and system-design considerations.
  • Experience designing and evolving distributed systems and service-based architectures.
  • Experience operating at Principal or Staff level and shaping technical direction across multiple teams or domains.
  • Strong technical judgement, communication skills, and ability to balance short-term delivery with long-term architectural outcomes.
  • Comfort navigating ambiguity, translating complex problems into practical approaches, and contributing hands-on when needed.
  • Strong experience with cloud platforms, preferably AWS, and modern infrastructure practices.
  • Experience working with systems where scale, reliability, performance, and cost trade-offs are important.
  • Experience contributing to engineering standards, architecture patterns, or platform direction.
  • Interest in or exposure to AI-enabled systems and their architectural implications in production.
  • Nice to have experience with transit or fare-payment systems, card schemes such as Visa, Mastercard, or Interac, and complex multi-service or event-driven architectures.
  • Familiarity with Kotlin, Java, DynamoDB, MySQL, Terraform, and GitLab CI/CD is beneficial.

Benefits

  • Fully remote work for candidates based in Romania.
  • 25 days of annual holiday plus a Christmas shutdown of approximately 3–4 additional days.
  • Premium medical care through Regina Maria, mental-health support, and menopause support.
  • Regular social gatherings with a monthly employee allowance.
  • Up to €1000 annual training budget and €200 for home-office expenses.
  • Choice of workstation and the ability to work from any country in the world for up to three months per year.

Tech Stack

Amazon DynamoDBAWSGitLab CI/CDJavaKotlinMySQLTerraform

Categories

Masabi

About Masabi

201-500 employees
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